This will be my first cruise and I have chosen Alaska!!! I was wondering which cruise line is the best for 20 something year olds? And on that cruise line which is the best deck for getting a balcony? I haven't researched the ships yet because I don't want to do any unnecessary work as this is supposed to be enjoyable! I want to cruise for 7 days leaving from Seattle and hopefully going on a kayaking excursion!

Out of Seattle you have many choices. Norwegian, Carnival, Royal Caribbean, Holland America, Celebrity, and Princess all have cruises out of Seattle. Norwegian and Carnival likely have the lowest prices.

You'll have to do some whittling down of choices before anyone can give more pointed advice.

I recommend Royal Carribean because they have a great Inside Passage cruise - Sawyer Glacier I think is the title. Leaves from and returns to Seattle - 7 days. You'll have a mix of age groups but should be plenty of 20 somethings. They have a zillion excursions. There are several kayaking - in the Tracey Arm Fjord - you'll be surrounded by glaciers! If you go May, early June - bring warm clothes. If you go mid to late summer, bring a lot of mosquito repellant!